Lavatory waste-plug.



.Y J. H. GAVIN.

LAVATOBY WASTE PLUG.

APPLICATION FILED JUNE 25, 1914.

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in the yfl Gookan i state'of Illinois,have inventeda new and'usefnl Imv provement in a. Lavatory. Waste 7 Plugs, of which the following is a specification.

This invention relates to improvements in lavatorywaste plugs.',

. Inf stalling lavatories bath tubsland the like,"uit iS often, found thatithe. same have certain irregularities resulting from ,the

manufacture which Frenders it :diificultto make easy connections between the wasteor v drain plugs and the drain pipes and other piping. Lavatoriesmade of cast iron, porcelain, vitreous material or other I substances requiring molding casting or baking, shrink or areotherwise so distortedin the manufacture that the, surfaces between which the.

plugs are clamped, are. not parallel, It sometimes ,alsohappens that in attaching a lavatory to a wall,,the lower surfacesof the lavatory do not extend perpendicularly from .therwalh The'res'ult is that the tail-pieces of the plugs. are not arranged vertically or in linewith the waste-pipes towhich they must be connected. "These defects have proved difiicult-of correction in actualprac-,

tice and havewgivenrise to a. great deal of trouble inthe installation of the plumbing fixtures. Nor is it possible to overcome the inherentdefects in the lavatories, bath-tubs and the. like by any-known methods ofmanufacture. a

The object of my; invention is to provide be attached to the lavatories, bath-tubsand the like in such a way that the tail-piece "or portion to be connected to the waste pipeor drain pipe, may be alwaysalined with the.

latter regardless. of any unevenness or irregularitiesin the-lavatory or tub.

The invention furthermore-consistsjn the improvements 1n the parts and devlces and novel'combinations of the parts and devices herein shown, described or claimed. In the drawing forming a part of this specification, Figure l is a vertical, sectional Specification of Letters Patent. A lication-filed June25, 1914. seriaine. 847,198.

0- LAv ronv WASTE-PLUG.

Patented. Deo.l9, 1916.

a; detail, horizontal, sectional view taken substantially on the 1ine 3 8 of Fig. ,1,.and Fig. 4 isa view similarto Fig. 1 showing a somewhat modified form of "the construction. v H M In. said drawing 10 denotes the bottom vall of the lavatory whichmay be made of cast iron, porcelain, vitreous material or other substance commonly used. In said bottom wall, asusual, is provided the drain outlet 11 and said lavatory is also provided withthe usual overflow passageway 12, the lower wall of which is provided with an opening 13 in alinement with the opening 11.

The improved plug consists of an upper, hollow member 14 having a flange 15 adapt ed to seat on a correspondingly inset portion 16 of the bottom of the lavatory, putty or cement or other substance 17 being placed therebetween to form a wateretight joint in the usual manner. ,The member 14, at the bottom thereof, is provided with a pair of downwardly extending pivot lugs 18,..18,

. be understood by those skilledin the art, simplemeans whereby the waste plugs may it v the overflow passageway 11. The shell 19 is exteriorly threaded, as indicated at 22, .so that it is adapted to receive a lock-nut 23 having a concave face 24 coincidingwith a portion of the surface of a sphere, the center of which lies midwaybetween the two pivotal connections 21, 21. Interposed between the lock-nut 23 and the bottom wall 12 of the overflow are two washers, an upper rubher washer 25 and a washer 27 having a convex, curved surface 28 formed to correspond and cooperate with the curved face 2a: of the lock-nut 23. Thewasher 27 and lock-nut 23, with their convex and concave surfaces form a ball-joint, as will be understood. "The lock-nut 23 is provided with a depending flange 29 exteriorly threaded and adapted to receive the tail-piece 30 which,

as will be understood, is attached at its lower end to the waste pipe proper.

In the embodiment of the invention shown in Figs. 1 and 3, the lock-nut 23'and -the washer 27 are formed of sheet metal, the lock-nut having the hexagonal contour shown in Fig.3 located beneath the end of the shell '19 and extending upwardly in threaded engagement therewith and termi- The upper rubber washer 25 is inserted between the adjacent face of the bottom wall 10 of the lavatory bowl or other article and the washer 27. r

The construction shown in Fig. t differs only from that already described, in that the lock-nut consists of a relatively short I annular lock-nut 40 having a curved surj face ll which 1s engaged by a washer A2 of solld metal having a correspondingly curved face 43. Between the washer l2 and the under surface ofthe bowl, a rubber washer 4-5 is positioned. The shell 19,.near its up-' per end, is provided with an inwardly ex tending bead or rib on which is adapted to be loosely seated a strainer.

From the preceding description, it will be seen that my improved plug may be adjusted to compensate for any irregularities in the lavatory surfaces between whlch the plug must be clamped, it being understood that the shell 19 is of less outside diameter than the opening 13 and the openings in the washers 25, 26 and 27 thus allowing free movement of the shell 19 with respect to said last named parts. With the combination of the pivotal connection between the members 1% and 19 and the ball-joint be-' tween the lock-nut and washer 27, a substantially universal adjustment is provided which will enable the tail-piece 30 to always be brought in vertical axial alinement with the drain-pipe proper.-

Although I have herein shown and de-* scribed what'l now consider the preferred embodiment of my improvement, yet it will be understood that various changes and modifications may be made without departing from the spirit of theinvention, and all such changes and modifications are contemplated as come within the scope of the claims .appended hereto.

'l'claim'z V 1. plug for lavatories and the like comprising two pivotally connected hollow members, the lower ofsa'idmembers being threaded,a ball-joint'washer, and a cooperating ball-joint lock-nut, the latter cooperating with said threaded member and the washer being interposed between the nut and the surface against whichthe plug is to be clamped, substantially as specified.

2. A plug for lavatories and the like comprising two hollow members pivotally con nected, said members; being recessed adja- "cent thepivotalconnections, and means for clamping said members in position, said meansincluding a lock-nut'and'washer having a' ball-joint therebetween, substantially as specified. I l P 7 j 7 3. A device of the character described in-' cluding, in combination: a lavatory having an overflow passageway, the bottom wall of 2 the lavatory proper and the bottom wall of the overflow passageway having alined openings; a plug extending through said openings, said plug comprising an upper flanged member and a lower threaded. member pivotally connected, said members being cut away on the side adjacent the overflow passageway; and means for clamping the plug n place, sald means including members having a ball-joint therebetween, substantially as specified.

4:. A device of the character described including, in combinationzla lavatory having an overflow passageway; a plug extending through the bottom wall of the lavatory and overflow passageway; and means for clamping said plug in position and permitting the latter to have a universal adjustment with respect to the lavatory, the contact between interengaging surfacesbeing' substantially constant in all adjustments, substantially as specified. m

5. A plug for l'avatories and the like comprising two hollow members adjustably connected, one of said members being exteriorly threaded, a look-nut cooperating with said threaded member, and-a washer cooperating with said lock-nut, the washer and lock-nut having cooperating curved surfaces forming a ball-joint, the contact between interengag-- ing surfaces being substantially constant in all adjustments, substantially as specified.

6, A plug for lavatories and the like comprising two hollow members adjustably connected, one of'said members being exter nally threaded, a lock-nut consisting of a single piece of internally threaded sheet metal engaging said externally threaded hollow member, and a washer of sheet metal cooperating with said lock-nut, the adjacent Signed this 20th day of June, 1914:, in the edges of said washer and lock-nut being presence of two subscribing witnesses.

curved to provide cooperating surfaces form- JOHN H. GAVIN. ing a ball-joint, the contact between interen- Witnesses:

5 gaging surfaces being substantially constant ROBERT LITTLE, in all adjustments, substantially as specified. FRED H. HASS.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0. 

